Wire-covering machine.



Patented May 2!, [90L E. CHAMBERLIN &. G. C. MURRAY.

WIRE COVERING MACHINE.

(Application filed Apr. 8, 1901. (No Model.) 2 Sheets-Sheet l.

n4:- NORRIS PEYERS c0. PHOTO-LITHL, WASHINGTON n. m

No. 674,670. Patented may 2|, |9o|.

E. CHAMBERLIN & e. c. MURRAY.

WIRE COVERING MACHINE.

(Application filed Apr. 3. 1901., (No Model.) 2 Sheets-Sheet 2.

THE uomus PETERS co. PKOTO-UYNQ. WASNINGTON n. c.

UNITED STATES PATENT OFFICE.

EUGENE CHAMBERLIN AND GEORGE C. MURRAY, OF BROOKLYN, NEW YORK.

WIRE-COVERING MACHINE.

SPECIFICATION forming part of Letters Patent No. 674,670, dated May 21, 1901.

Application filed April 3, 1901.

To all ZUhOTN/ it ntcty concern:

Be it known that we, EUGENE CHAMBERLIN and GEORGE C. MURRAY, citizens of the United States, residing in the borough of Brooklyn, county of Kings, city and State of New York, have invented certain new and useful Improvements in Wire-Covering Machines, fully described and represented in the following specification and the accompanying drawings, forming a part of the same.

This invention relates to a machine for straightening and re-covering bent or twisted and worn-out electric conductors and other covered wires-such, for example,as the wires of old field-magnet coils.

I The present invention has primarily for its object to provide a machine of this character containing mechanism for scraping the covering from the wire (which covering is preferably first charred in a suitable furnace to facilitate its removal) and for straightening out the wire by removing kinks, bends, or other irregularities, mechanism for cleaning and polishing the surface of the wire, mechanism for re-covering it, and mechanism for winding the re-covered wire upon a suitable reel.

Although it is the primary object of the present invention to provide a machine in which all of the mechanisms referred to are combined together, the invention is not to be so limited, as certain parts thereof relate to combinations including a lesser number of such mechanisms and also to certain novel features in the construction and arrangement of certain of said mechanisms.

In the accompanying drawings, Figure 1 is a side elevation of a machine embodying the present invention, illustrating the several mechanisms above referred to arranged in the order in which they operate upon the wire. Fig. 2 is a plan view of the same. Fig. 3 is a face view, on an enlarged scale, of the mechanism for re-covering the wire, showing also means for applying a liquid to the covering material before the latter is laid upon the wire. Fig. 4 is a section of the same on the line 4 of Fig. 3. Fig. 5 is a section, on a still larger scale, taken on. the line 5 of Fig. 3, illust rating particularly the means employed for applying aliquid which may have adhe- Berial No. 54,126. (No modeh) sive or insulating properties, or both,- to the covering material applied to the wire. Fig. 6 is a side elevation, on an enlarged scale, of the mechanism shown in Figs. 1 and 2 for cleaning and polishing the surface of the wire after it has been straightened and before the re-covering material is applied thereto. Fig. 7 is an end view of the same looking toward the left of Fig. 6. Fig. 8 is a section on the line 8 of Fig. 7. Fig. 9 is a section, on an enlarged scale, taken on the line 9 of Fig. 2, illustrating means for guiding the re-covered wire to and laying the coils thereof side by side upon the reel or spool upon which the wire is wound; and Figs. 10 and 11 are respectively an end elevation and a plan View of the mechanism shown in Fig. 9. 1

Referring to'said .drawings, in Fig. 1,-A indicates generally the wire straightening and scraping mechanism; B,the wire cleaning and polishing mechanism; 0, the wire-re-covering mechanism, with which is combined a liquidapplying mechanism; D, a pressure device for acting upon the wire after it is re-covered, so as to consolidate or compress about the wire the covering applied to it, while E indicates the wire-guiding mechanism for guiding the re-covered wire therefrom to a wind-up mechanism F and for laying the coils of wire side by side upon the reel or spool in said wind-up mechanism. l

The several mechanisms referred to are, with the exception of the wire straightening and scraping mechanism A, (which is stationary) driven, through connections which will be hereinafter described, from the powershaft G, mounted in the frame H of the machine.

The wire straightening and scraping mechanism A, which first engages the wire as it enters the machine, consists of two sets of blocks or fingers l 2, projecting in opposite directions and toward each other, as shown in Fig. 1, said fingers or blocks being grooved longitudinally, so as to provide a guideway for the wire. The upper set of blocks or fingers 1 is adjustable to and from the lower set 2 for the purpose of regulating the pressure of the blocks or fingers upon the wire passing between them, the upper set of blocks or fingers 1 for the purpose of such adjustment being mounted in a bracket 3, pivoted at one end to a supporting-frame 4 and provided at its opposite or free end with an ad justing-screw 5, entering a threaded lug 6 upon the frame 4, so that by'turning the screw 5 the bracket 3may be raised or lowered and the upper set of blocks or fingers 1 adjusted from or toward the lower set of blocks or fingers 2. The functions of the blocks or fingers 1 2 are, first, to scrape the insulation or other covering from the wire 10, (such insulation preferably having been previously charred in a suitable furnace to facilitate its removal,) and, second, to straighten out the wire as it passes between them by removing therefrom or smoothing out any bends, kinks, or other irregularities which may exist in the wire. In the ordinary operation of this wire scraping and straightening mechanism the fingers or blocks 1 2 will be adjusted relatively to each other, as shown in Fig. 1, so as to provide a sinuous path for the wire, and thus increase the pressure of the fingers or blocks 1 2 upon the wire, and consequently their effectiveness in scraping the insulation or other covering from the Wire and in straightening out any bends, kinks, or other irregularities which may exist in the Wire. The wire-engaging portions 1 2 or inner ends of the grooves in the fingers or blocks 1 2 are rounded, as shown in Fig. 1, so as to avoid short turns in the path of movement of the wire, which if they existed might result in breakage of or other injury to the wire or in injury to the machine. The scraped and straightened wire after leaving the fingers or blocks 1 2 passes through a stationary guiding-tube 7, formed in a bracket 8, secured to the frame H, and thence to the wire cleaning and polishing mechanism B, which will now be described.

The wire cleaning and polishing mechanism B, which is illustrated in detail in Figs. 6, 7, and 8, consists of a buffing-wheel 10, of emery or other suitable material, mounted so as to revolve about and in contact with the wire 'w between the arms 11 of ayoke shaped bracket 12, secured to one end of a pulley 13, which is rotated by means of a belt 14, passing over a pulley 15, secured to driving-shaft G. The buffing-wheel 10 is designed not only to revolve about the wire, but also to rotate in the arms 11 as it is revolved about the wire, and for this purpose its shaft 16 (which is journaled in blocks 17 in arms 11) has fixed to it a pulley 18, over which passes a belt 19, which also passes over a pair of tension-pulleys 20 and over a stationary pulley 21, fixed to the bracket 8, in which the guide 7 is formed. As the butting-wheel 10 is revolved by the pulley 13 about and in contact with the wire the pulley 18, and with it the shaft 16 and buffing-wheel 10,will be rotated by the belt 19, so that the buffing-Wheel will subject the wire to a polishing action, and thus clean and polish the Wire and remove therefrom any particles of insulation or other covering or dust not removed by the fingers or blocks 1 2. buffing-wheel 10 and also to adapt the buffing-wheel for operation upon wires of different diameter or for operation with different degrees of pressure on different wires, said 'buffing-wheel is adjustably mounted in the In order to compensate for wear of the 1 piece 25 at the outer end of the guideway,

bears against the sliding block 17, so as to adjust the latter and the buffing-wheel 10 inwardly against the pressure of the spring 23 and toward the moving wire. In order to maintain the belt 19 taut as the sliding blocks 17 are adjusted inwardly or outwardly, the tension-rollers 20 are each mounted in the overlapping ends of a pair of links 26 27, the opposite ends of which are pivoted, respectively, to the shaft 16 and the hub of stationary pulley 21. From this construction it results that as the sliding blocks 17, shaft 16, and bufiing-wheel 10 are adjusted inwardly or toward the path of movement of the wire to the tension-pulleys 20 are moved outwardly by said links 26 27, and when said blocks, shaft, and buffing-wheel (relieved of the press sureof screw 24) are moved outwardly by the spring 23 said tension-pulleys are moved by their links inwardly toward each other, the belt 19 being thus maintainedin a taut condition in the difierent positions to which the said parts are adjusted. After leaving the buffing-wheel the cleaned and polished wire passes through longitudinal openings or guideways provided in the pulley 13 and in a sleeve 28, journaled in a bracket 29 and secured to or formed upon pulley 13. The wire then passes to the wire-covering mechanism 0, which will now be described and by which said wire is provided with a covering of insulating or otherdesired material, which may be in the form of a strip, tape, or thread.

The covering mechanism 0 referred to consists of a carrier 30, borne by the sleeve 28, so as to be rotated with said sleeve and pulley 13 by the belt 14:. The rotary carrier 30 is provided with means, as studs 31, (two being shown, though a lesser or greater number may be employed, if desired,) for the reception of spools 32, provided with covering material, preferably in the form of tape, and which may be of insulating or other desired materialJ Each of the studs 31 is provided with a flange 33, against which the inner face of the spool 32 rests, and with a nut 34:, engaging the outer face of said spool, so as to hold it in position upon the stud 31 as the carrier 30 is rotated. Each of the studs 31 is also provided with a spring 35., preferably in the form of a plate, for bearing against the inner face of the spool 32 for the purpose of restraining rotation of said spool, and thus maintain the tape under proper tension as it is unwound from the spool. The carrier 30 is also provided, for each of the spools of tape or other material which it is designed to carry, with a series of guiding-pins 36, around which the tape is led after leaving the spool. The carrier 30 is also provided, for each spool 32, with a guide 37, around which the tape passes after leaving the pins 36, this guide 37 being arranged obliquely to the path of movement of the wire, so that as the carrier 30 is rotated in the direction of the arrow, Fig. 3, the tape is wound spirally about the wire. If desired, a liquid having adhesive or insulating properties, or both, may be applied to the tape thus wound about the wire, and means for applying such a liquid to the tape as it is fed toward the wire is provided by the present invention and will now be described. For this purpose the carrier 30 is made hollow, so as to provide a chamber 38 for containing such a liquid, which may be discharged from said chamber and applied to the tape in any suitable manner, but is preferably discharged therefrom and applied to the tape through the guides 37, which for this purpose are bored out, (see Fig. 5,) so as to form tubes communicating with said chamber, and are provided with side openings or perforations 39,thro ugh which the liquid is discharged therefrom and applied to the face of the tape on its way from the spool 32 to the wire upon which it is to be wound. Each of the tubular guides 37 is also'preferably provided with a valve 40, by which the supply of liquid entering the guides from the chamber 38 may be regulated. From the covering mechanism just described the covered wire, with or without liquid applied to the tape thereon, passes to the pressure device D, which will now be described, and by which the covering of tape applied to the wire is compressed or consolidated thereon.

The pressure device 1) consists simply of a pulley or drum 41, which is driven from the shaft G by a pinion 42, secured to the shaft of pulley 41, and pinion 43, meshing with said pinion 42 and fast to the shaft of a pulley 44, driven by a belt 45, passing'over said pulley and over a pulley 46 on shaft G. The pulley 41 is caused to act as a pressure device for compressing and consolidating the covering on the wire by taking one or more turns of the wire about the pulley, as shown in Fig. 2. From the pulley 41 the wire passes to the winding mechanism F, which consists of a spindle 47, adapted to receive a removable reel or spool and driven from the shaft G by a belt 49, passing over a pulley 50 on spindle 47 and over a pulley 51 on shaft G. Between of coils upon the reel 48 is completed has its movement reversed, soas to lay another layer of coils upon the reel 48 in the opposite direction. This wire-guiding mechanism consists of a threaded spindle 52, j ournaled transversely to the path of movement of the wire in brackets 53, secured to the frame H, and a traveling or reciprocating guide 54, having a threaded connection to spindle 52 and provided with a projection 55, engaging a rod 56, by which said guide 54 is prevented from turning, so that as spindle 52 is rotated the guide 54 is caused to move across the path of movement of the wire and endwise of the reel 48. The guide 54 is provided with a fork, as 57, for engaging the wire, so that as it is thus moved endwise of the reel 48 it will lay the wire in coils side by side along the reel. The spindle 52 is rotated first in one direction and then in another, so as to reverse the movement of the guide 54 as a layer of coils of the wire is completed upon the reel 48 by connections from winding-spindle 47, consisting of a pair of belts 58 59, (the former being crossed,) a pair of pulleys 6O 61, fast to spindle 47, and a pair of pulleys 62 63, fast to spindle 52, a loose pulley 64 being interposed between pulleys 60 61 and a like loose pu lley 65 interposed between pulleys'62 63. When belt 58 is, as shown, upon pulleys 6O 62, with belt 59 on loose pulleys 64 65, spindle 52 will be rotated in one direction, while when belt 59 is on pulleys 61 63, with belt 58 on loose pulleys 64 65, spindle 52 will be rotated in the opposite direction. Means are provided in the present case, which will now be described, for automatically shifting the belts 58 59 to these positions as the guide 54 completes its movement in each direction. 7 For this purpose the rod 56 is mounted in brackets 53, so as to be movable endwise, and is provided with beltshifters 66, embracing belts 58 59. The rod 56 is thus moved endwise for the purpose of shifting the belts 58 59 by the arm or projection 55 of guide 52,which at opposite ends of its movements engages sliding collars 67 68 on said rod, and through said collars and a pair of collars 69 70,6xed to said rod, and springs 71, between said sliding and fixed collars, eifects the endwise movement of said rod 56, and consequently shifting of the belts. Means are provided for retaining the rod 56 in the position to which it is thus moved until the guide 54 has completed its movement in the opposite direction, such means consisting of a pair of spring-pressed catches 72 73, pivoted in brackets 74 and engaging the fixed collars 69 upon rod 56,and the heels of which are adapted to be engaged by the sliding collars 67 68, so as to be rocked out of engagement with collars 69 70, and thus IIO permit the springs 71 (which are meanwhile the catch 73 is in engagement with fixed collar 70, in which position of engagement it remains until the reverse movement of the guide 54: is completed. As the guide 54 approaches the end of its reverse movement it engages the sliding collar 68 and moves it toward the fixed collar 70, thereby compressing spring 71. As it reaches the end of its movement thecollar 68 engages the heel of catch 73 and rocks it out of engagement with collar 70, when the spring 71 will move the rod 56 to the right, Figs. 9 and 11, and thereby effect the shifting of the belts 58 59. When the rod 56 has been thus moved, the fixed collar 69 at the opposite end thereof will be engaged by catch 72 and the rod 56 thus locked in its shifted position, in which it remains until the neXt movement of the guide 52 is completed, when the operation just described is repeated at the opposite end of the rod.

The brackets 74=,in which the catches 72 73 are pivoted, are adjustably connected in a guide 75, so that they may be adjusted relatively to the collars 69 70, each of said brackets beingprovided wilhaset-screw 76,where by the brackets may be secured in the position to which they are adjusted.

The wire to be operated upon by the mechanisms described may be supplied theretoin any form or in any suitable manner, the wire to be operated upon being first subjected to a high degree of heat in a furnace for the purpose of burning or cbarring the insulation or other covering, so that it may be more easily removed by the scraping fingers or blocks 1 2, as before stated. Where the wire to be operated upon is the winding of an electromagnet, the spool containing the wire will first be placed in a furnace and then may be placed on a stand, as 77, provided with a stud 78, on which the spool may turn as the wire is unwound therefrom, or wire from any other source may be wound upon such a spool or reel.

What is claimed is 1. In an apparatus for removing the covering from wire and then re-covering the same, the combination of mechanism for straightening the wire and scraping the covering therefrom, mechanism for polishing the surface of the wire, and mechanism for re-co vering it with tape or the like, substantially as described.

2. In an apparatus for removing the covering from wire and then re-covering the same, the combination of mechanism for straightening the wire and scraping the covering therefrom, mechanism for polishing the surface of the wire, mechanism for re-covering it with tape or the like, and means for applying a liquid to the tape or the like before it is applied to the wire, substantially as described.

3. In an apparatus for removing the covering from wire and then re-covering the same, the combination of mechanism for straightening the wire and scraping the covering therefrom, mechanism for polishing the surface of the wire, mechanism for re-covering it with tape or the like, and mechanism for engaging and consolidating or compressing the covering upon the wire, substantially as described.

t. In an apparatus for removing the covering from wire and then recovering the same, the combination of mechanism for straightening the wire and scraping the covering therefrom, mechanism for polishing the surface 0f,the wire, mechanism for re-covering it with tape or the like, means for applying a liquid to the tape or the like before it is applied to the wire, and mechanism for engaging and consolidating or compressing the covering upon the Wire, substantially as described.

5. In an apparatus for removing the covering from wire and then re-covering the same,

the combination of mechanism for straightening the wire and scraping the covering therefrom, mechanism for polishing the surface of the wire, mechanism for re-covering it with tape or the like, mechanism for winding the wire upon a suitable support, and mechanism whereby successive coils of wire are laid side by side along the support, substantially as described.

6. In an apparatus for removing the covering from wire and then re-covering the same, the combination of mechanism forstraightening the wire and scraping the covering therefrom, mechanism for polishing the surface of the wire, mechanism for re-covering it with tape or the like, mechanism for Winding the wire upon a suitable support, mechanism whereby successive coils of wire are laid side by side along the support, said mechanism including a reciprocating guide engaging the Wire and moving endwise of the support, and means for automatically reversing the movement of said guide as the winding of each layer of wire is completed, substantially as described.

7. In an apparatus for removing the covering from wire, and then re-covering the same, the combination of mechanism, comprising two opposed and relatively adjustable members engaging opposite sides of the wire for straightening the wire and scraping the covering therefrom, mechanism for polishing the surface of the wire, and mechanism for recovering it with tape or the like, substantially as described.

8. In an apparatus for removing the covering from wire and then re-covering the same,

the combination of mechanism, comprising two opposed and relatively adjustable members bearing grooved fingers or blocks engaging opposite sides of the wire for straightening the wire and scraping the covering therefrom, mechanism for polishing the surface of the wire, and mechanism for recovering it with tape or the like, substantially as described.

9. In an apparatus for removing the covering from wire and then re-covering the same, the combination of mechanism for straightening the wire and scraping the covering therefrom, mechanism for polishing the surface of the wire, comprising a buffing-wheel adapted to revolve about and in conlact with the wire and to rotate on its own axis while revolving about the wire, and mechanism for re-covering the wire with tape or the like, substantially as described.

10. In an apparatus for removingthe coverv ing from wire and then re-covering the same,

the combination of mechanism for straightening the wire and scraping the covering therefrom, mechanism for polishing the surface of the wire, and a rotating carrier for re-covering it spirally with tape or the like, substantially as described.

11. In an apparatus for removing thecovering from wire and then re-covering the same,

the combination of mechanism for straightening the wire and scraping the covering therefrom, mechanism for polishing the surface of the wire, a rotating carrier for re-covering it spirally with tape or the like, and means for applying a liquid to the tape or the like before it is applied to the wire, substantially as described.

12. In an apparatus for removing the covering from wire and then re-covering the same, the combination of mechanism for straightening the wire and scraping the covering therefrom, mechanism for polishing the surface of the wire, a rotating carrier for re-covering it spirally with tape or the like, a liquid-receptacle moving with said carrier, and means for conducting liquid from said receptacle and applying it to the tape or the like before it is applied to the wire,substantially as described.

13. In an apparatus for removing the covering from wire and then re-covering the same, the combination of mechanism forstraightening the wire and scraping the covering therefrom, mechanism for polishing the surface of the wire, a rotating carrier for re-covering it with tape or the like, said carrier being provided with a tubular guide for the tape or the like, and a liquid-receptacle moving with said carrier and with which said tubular guide communicates, said guide being provided with an opening or openings whereby liquid from the receptacle is applied to the tape or the like as it passes around the guide, substantially as described.

14. In an apparatus for removing the covering from wire and then re-covering the same, the combination of mechanism for straightening the wire and scraping the covering therefrom, mechanism for polishing the surface of the wire, a rotating carrier for re-covering it with tape or the like, said carrier being provided with a tubular guide for giving a spiral direction to the tape or the like, and a liquidreceptacle moving with said carrier and with which said tubular guide communicates, said guide being provided with an opening or openings whereby liquid from the receptacle is applied to the tape or the like as it passes around the guide, substantially as described.

15. In an apparatus for removing the covering from wire and then recovering the same, the combination of mechanism for straightening the wire and scraping the covering therefrom, mechanism for polishing the surface of the wire, a rotating carrier for re-covering it with tape or the like, said carrier being provided with a tubular guide for the tape or the like, a liquid-receptacle moving with said carrier and with which said tubular guide communicates, said guide being provided with an opening or openings whereby liquid from the receptacle is applied to the tape or the like as it passes around the guide, and a valve for regulating the flow of liquid through said opening or openings, substantially as described.

16. In an apparatus for removing the cover ing from Wire and then re-covering the same, the combination of mechanism for straightening the wire and scraping the covering therefrom, mechanism for polishing the surface of the wire, a rotating carrier for re-covering it with tape or the like, said carrier being provided with a tubular guide for giving a spiral direction to the tape orthe like, a liquid-receptacle moving with said carrier and with which said tubular guide communicates, said guide being provided with an opening or openings whereby liquid from the receptacle is applied to the tape or the like as it passes around the guide, and a valve for regulating the flow of liquid through said opening or openings, substantially as described.

17. The combination with wire covering mechanism, of a wire-polishing mechanism comprising a buffing-wheel 10, a rotating support or carrier therefor whereby said wheel is revolved about and in contact with the wire, and means for rotating said buffingwheel on its own axis as it is thus revolved about the wire, substantially as described.

18. The combination with wire covering mechanism, of a wire-polishing mechanism comprising a buffing-wheel 10, a rotating support or carrier therefor whereby said wheel is revolved about and in contact with the wire, and means, comprising a belt 19 and pulleys 18, 21, for rotating said buffing-wheel on its own axis as it is thus revolved about the wire, substantially as described.

19. The combination with wire-covering mechanism, of a wire-polishing mechanism comprising a buffing-wheel 10, a rotating support or carrier in which said wheel is adjustably mounted so that it may be adjusted to and from the path of movement of the wire and by which it is revolved about and incontact with the wire, means comprising a belt 19 and pulleys 18, 21 forrotating said buffing- Wheel on its own axis as it is thus revolved about the wire, and a suitable tension device for maintaining said belt taut as the buflingwheel is adjusted, substantially as described.

20. The combination with wire-covering mechanism, of a wire-polishing mechanism comprising a buffingwheel 10, a rotating sup port or carrier in which said wheel is adjustably mounted so that it may be adjusted to 'and from the path of movement of the wire and by which it is revolved about and in contact with the wire, means comprising a belt 19 and pulleys 18, 21 for rotating said buffingwheel on its own axis as it is thus revolved about the wire, and links 26, 27 and pulleys 20 for maintaining the belt taut as the buffingwheel is adjusted, substantially as described.

21. The combination with wire-covering mechanism, of a wire-polishing mechanism comprisinga buffing-wheel 10, bracket 12 provided with adjustable bearings for said wheel, belt 19 and pulleys 18, 21, tension-pulleys 20 and means for revolving bracket 12 and wheel 10 about the wire, substantially as described.

22. The combination in a wire covering mechanism, of a rotary carrier, as 30, for the covering material, a liquid-receptacle, as 38, moving therewith, and a tube 37 adapted to contact with the covering material, said guide communicating with the liquid receptacle and'being provided with an opening or openings for the discharge of the liquid against the covering material, substantially as described.

23. The combination in a wire-covering mechanism, of a rotary carrier, as 30, for the covering material, a liquid-receptacle, as 38, moving therewith, a tube 37 adapted to contact with the covering material, said guide communicating with the liquid receptacle and being provided withan opening or openings for the discharge of the liquid against the covering material, and a valve 40 controlling the discharge of liquid from the tube, substantially as described.

24. The combination in a Wire-covering mechanism, of a rotary carrier, as 30, for the covering material, a liquid-receptacle, as 38, moving therewith, and an obliquely-arranged tube 37 adapted to contact with the covering material, said guide communicating with the liquid-receptacle and being provided with an opening or openings for the discharge of the liquid against the covering material, substantially as described.

25. The combination with mechanism for winding wire or the like on a suitable support, of spindle 52, belts and pulleys for rotating it, wire-guide 54 threaded to said spin dle, belt-shifting rod 56, springs 71 for movport, of spindle 52, belts and pulleys for rotating it, wire-guide 54 threaded to said spindle, belt-shifting rod 56, springs 71 for moving it endwise, sliding collars 67, 68, fixed collars 69, 70, adjustably-mounted catches 72, 73 for engaging collars 69, 70, and means carried by guide 54 for compressing said springs and releasing said catches as said guide reaches the limit of its movementin opposite directions, substantially as described.

, 27. The combination with mechanism for winding wire or the like on a suitable support, of a threaded spindle, belt-and-pulley connections for rotating it in opposite directions, a reciprocating wire-guide operated by said spindle, a belt-shifter for changing the direction of rotation of said spindle, springs for moving said belt-shifter in opposite directions, means operated by the guide for compressing said springs, and locking mechanism normally restraining movement of said belt-shifter and released by said guide on the completion of each reciprocation, substantially as described.

28. The combination with mechanism for winding Wire or the like on a suitable support, of a threaded spindle, belt-and-pnlley connections for rotating it in opposite directions, a reciprocating Wire-guide operated by said spindle, a belt-shifter for changing the direction of rotation of said spindle, springs for moving said belt-shifterin opposite directions, means operated by the guide for compressing said springs, and adjustable locking mechanism normally restraining movement of said belt-shifter and released by said guide on the completion of each reciprocation, substantially as described.

In testimony whereof we have hereunto set our hands in the presence of two subscribing witnesses.

EUGENE CHAMBERLIN. GEORGE O. MURRAY. Witnesses:

T. F. KEHOE, J. A. GRAVES. 

